systemd: fix error thrown by 'sed' in scw-set-hostname #224
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hostnamectl
can return more than one hostname, the pair "transient"and "static" hostname is not uncommon.
The script then fails because
$old_hostname
is set to two lines (!)with the first being "n/a". Both get passed to
sed
and result in aninvalid script both ways, because
grep
finds it erroneously due toits special meaning.
Just assume it's not in /etc/hosts